Safe opening and closing device for fan tower cover plate

The invention discloses a safe opening and closing device for a fan tower drum cover plate, which comprises a main body assembly, a tower drum platform, a hole, the tower drum cover plate and a ladder stand, the safety opening and closing assembly comprises an opening and closing piece, a safety protection piece and a joint control piece. The device has the beneficial effects that workers can conveniently and simply operate by themselves in the ladder climbing process through the opening and closing piece, opening and closing of the fan tower barrel cover plate can be controlled at any time, and time and labor are saved; the stability of the fan tower barrel cover plate in the opening or closing state can be kept through the safety protection piece, and potential safety hazards are reduced; and a worker can easily carry out the operation on the upper side and the lower side of the fan tower barrel cover plate through the joint control piece, so that opening and closing of the fan tower barrel cover plate are